US – Page 77 – TechConnect Briefs

Analytical system capable of rapidly quantifying food-borne pathogen for food safety and public health

Khang J., Kim D., Chung K.W., Lee J-H., Luminescent MD, LLC, US

Cost-effective and easy-to-use biosensor was developed for the rapid quantification and monitoring of Escherichia (E.) Coli O157:H7 in sample using E. Coli O157:H7 aptamer, graphene oxide (GO)/iron nanocomposites, and guanine chemiluminescence detection. E. Coli O157:H7 [...]

Peering into polymer dynamics in carbon nanocomposites

Ashkar R., Bertrand C., Abdulbaki M., Tyagi M., Faranone A., Butler P., Krishnamoorti R., National Institute of Standard and Technology, US

Carbon nanocomposites have received significant attention owing to the unique properties of carbon nanoparticles. However, the promised enhancement in carbon nanocomposites has not been fulfilled yet. Lately, there has been a growing consensus that material [...]

In Vitro Assessment of a Novel Cancer Therapy Combining Drug Loaded Magnetic Nanoparticles and Magnetic Hyperthermia

Ni Q., Texas A&M International University, US

We propose to develop a novel combination therapy for prostate/breast treatment by combining two treatment modalities (hyperthermia therapy and chemotherapy) into one using MCaP nanoparticles (NP) system. Our proposed MCaP NPs possess unique properties, including: [...]

Structure and Mechanical Properties of Cr(Al)N/Al2O3 Nanocomposite Hard Coatings Fabricated by Differential Pumping Cosputtering

Kawasaaki M., Onishi I., Matsuda K., Nose M., Shiojiri M., JEOL USA Inc., US

Analytical electron microscopy revealed the structure of Cr(Al)N/Al2O3 nanocomposite coatings prepared on the Si substrate rotated at a speed as high as 12 rpm in a differential pumping cosputtering system(DPCS). The main layer that sputter-deposited [...]

Investigating Environmental Weathering of CNF/CNT/ Thermoplastic Polymer Synthesized using Additive Manufacturing

Sahle-Demessie E., Zhao Amy, Stephen Chady, U.S. Environmental Protection Agency, US

Additive manufacturing (aka, 3D printing) is an emerging technology for making a new class of multifunctional nanocomposites for many niche items such as medical implants, and a wide range of industrial designed components. Additive manufacturing [...]

Nanocomposite optimization using polymer-wrapped carbon nanofibers

Papantonakis M.R., Barbano M.E., Ou W., Gorzkowski E.P., McGill R.A., US Naval Research Laboratory, US

We present results for carbon nanofibers modified by physisorption with a range of polymer modifiers and then dispersed in different polymeric hosts with mechanical advantage and other applications in mind. In contrast to covalent bonded [...]

Generating Functionalized Nanocabons and Polymer Nanocomposites in Poly(phosphoric acid)

Tan L.-S., Wang D.H., Baek J.B., Air Force Research Laboratory, US

Inorganic acids such as HNO3, HCl, H2SO4 are commonly used to remove catalyst residues and carbonaceous impurities from carbon nanotubes and nanofibers. Under more forcing conditions, oxidizing nitric acid is known to “cut” the CNT [...]

Preparation and mechanical properties of fiber-reinforced silica aerogels and its phase change nanocomposite

Zhou X., Georgia Institute of Technology, US

The present study is devoted to the investigation of mechanical properties of fiber-reinforced silica aerogels and composite phase change materials. We firstly reported our study on the preparation process of fiber-reinforced silica aerogels and PCM/silica [...]

Thermodynamic/heat transfer of n-eicosane in silica nano-porous materials

Zhou X., Georgia Institute of Technology, US

This study mainly involved the fabrication of n-eicosane/silica nanocomposite and modeling of combined thermodynamic/heat transfer based on the prepared composite structure and measured thermo-physical data. we performed combined thermodynamic/heat transfer analysis to obtain the total [...]

Increased Heat Transfer through Dropwise Condensation on a Bio-inspired Superhydrophobic-Hydrophilic Surface

Mondal B., Mac Giolla Eain M., Xu Q.F., Egan V., Punch J., Lyons A.M., City University of New York, US

Condensation of water vapor is an essential process in power generation, water collection, and thermal management. Because of the high surface energy of the metal surfaces, filmwise condensation of water vapor occurs, forming a static, [...]